Wireless modem



FIG. 1 is a perspective view of a wireless modem;

FIG. 2 is a front plan view thereof;

FIG. 3 is a back plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof; and

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a top elevational view thereof. 

The ornamental design for a wireless modem, substantially as shown and described. 